Magneto distributor and bearing therefor



Oct. 7. 1924.

A. o. 'r. LIBBY IAGNI'JTO DISTRIBUTOR AND B EARING THEREFOR Filed Feb. 11

, R m E W Patented Oct. 7, 1924.

UNITED STATES PATENT OFFICE.

ALBION D. '1. LIBBY, OF EAST ORANGE, NEW JERSEY, ASSIGNOR TO SPLITDORF ELECTRICAL COMPANY, OF NEWARK, NEW JERSEY.

MAGNETO DISTRIBUTOR AND BEARING THEREFOR.

Application filed February 11, 1922.

To all whom it may concern:

Be it known that I, ALBION I). T. LIBnY, a citizen of the United States, residing at East Orange, in the county of Essex, State of New Jersey, have invented certain new and useful Im rovements in Magneto Distributors and earings Therefor, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

This invention relates to magneto electric generators designed particularly for ignition purposes.

In the application, Serial No. 482,053, filed July 2, 1921, by Edward B. Nowosielski, there is shown and described a magneto having a particular type of distributor and distributor bearing. It is the principal object of this invention to eliminate some of the parts and thereby simplify the distributor mechanism shown in the said Nowosielski application. In the drawing accompanying this specification, only those parts of the said Nowosielski construction are shown which are necessary to make my im nrovements understood.

igure 1 illustrates a part sectional view of'this particular ty e of magneto, showing the distributor mec ianism in considerable detail; I

Figure 2 is a section on the line 2-2 of Fi 1;

Figure 3 is a back View of the front end plate of the magneto Figure 4: is a section on the line 4z4t of Fig. 3; while.

Figure 5 is a detailed view of the distributor sleeve.

Referring now to the details wherein like numbers refer to corresponding parts in the various views, 1 illustrates the frame work of a magneto to which is attached a front bearing plate 2, which carries a bearing 3 supporting one end of a rotor 4.

' Mounted above the rotor 41 and within the shown in Fig. 1, the groove 9 is fitted with a suitable wick 10, which will be later referred to. Over the hub 8 is pressed, or otherwise fastened thereto or to the front plate 2, a collar 11 made out of suitable bearing Serial No. 535,758.

material. As shown, the collar 11 has an upturned flange 12 positioned within an annular recess 13 formed between the hub 8 and the lip 14: on the front plate 2.

' Carried on the collar 11 is a unitary structure consisting of a combined distributor gear and distributor disc. The gear portion consists preferably of a metallic rim 15 on which the suitable gear teeth are cut to mesh with the pin-ion16 on the rotor 4. The distributor part of said unitary construction is made up of insulating material of a suitable composition to provide a good wearin surface for the distributor brushes, one 0' which is shown at 17. It is to be understood that the distributor block 18, supportof this invention and will not be described further herein. The distributor disc portion which is designated by 20 carries a centrally located insert 21 and a sector 22 which intermittently makes contact with the brushes 17 as the disc 20 is rotated. In making the unitary distributor disc and gear, I also mold as a part of this unitary structure a sleeve 23, which is of suitable material to cooperate with the collar 11 to provide a good bearing surface. The sleeve 23 has an upturned flange 24 with notches 25 therein in order that the molding material may flow into the notches and drivingly position the sleeve to the distributor. It will also be understood that the flange 26 of the gear rim 15 has notches or holes therein for the purpose of allowing the molding material to flow thereinto in order to lock the rim 15 securely to the moulding material.

In moulding the unitary structure above described, I prefer. to mold the recess portion bounded by the dotted line 27 complete and then machine the recess out in order to make room for the upper ortion 28 of the circuit breaker plate 29, w ich pro'ects upward into the plane of the distri utor as is clearly shown in Figs. 1 and 2. It will be understood, of course, that this recess would not need to be formed if a diflerent construction of the circuit breaker plate were used, or if the sector portion 28 were cut off, or if the distance between the center of the shaft of the rotor 4 and the center of the distributor gear were greater than that shown, but in order to get a very small and compact structure, these parts are moved to go on as close centers as possible, and in order to secure the best advantages from the circuit breaker plate 29 it is preferable to remove that portion of the distributor to make room for the plate 29 as is described. The distributor disc has an inwardly projecting hub 30 within which is positioned a connector brush 31, that engages the insert 32, which is moulded in the connector 7, current from the coil 6 being carried to the insert 32 by a resilient member 33.

The combined distributor disc and gear are held in position on the collar 11 by the thrust button 34, carried in the central part of the distributor block 18. The thrust button 34 is preferably of fibre and the pressure is just enough to hold the distributor and gear unit in position without making any undue friction at the point where the sleeve 23 engages the flange 12 of the collar 11.

The collar 1], has an opening 35 therein and when the collar 11 is pressed on to or otherwise fastened to the hub 8, this open-- ing is at the top as shown in 1 Through this opening a wire is passed around the groove 9, and the wick 10 drawn into the said groove. The ends of the wick are preferably left projecting slightly through the opening 35, so as to engage the sleeve 23 when the same is turning. The ends of the wick are omitted in the draw ing from the opening 35 in order to show this opening clearly. Positioned preferably on both sides of the front plate 2, are oil holes 36 and 37, leading downward and into the groove 9 as more clearly indicated in the fragmentary View shown in Fig. A drain hole 38 leads from the recess between the hub 8 and the lip 14 downward to the bearing 3, whereby any surplus oil working out between the collar 11 and the sleeve 23 is carried off to the bearing 3.

While I have shown and described a pre ferred form of my invention, it will be apparent that the details may be varied considerably without departing from the spirit of my invention, and the scope of the ap pended claims.

Having thus described my invention, what I claim is:

1. In a magneto generator, a front bearing plate having a hub projecting therefrom, an annular groove in said hub, a bearing collar fitting over said hub and having an opening at the top into said groove, a distributor gear having a sleeve adaptedto rotatably fit over said collar, a distributor disc carried by the gear, a wick positioned in said groove so as to project through the opening in said collar, and

means for passing lubricant to said groove and wick for the purpose described.

2. In a magneto generator, a front bearing plate having a hub projecting therefrom, an annular groove in said hub, a bearing collar fitting over said hub and having an opening at the top into said groove, a distributor gear having a sleeve adapted to rotatably fit over said collar, a distributor disc integral with said gear, a wick positioned in said groove so as to project through the opening insaid collar, and means for passing lubricant to said groove and wick for the purpose described.

3. In a magneto generator, a front bear ing plate having a hub projecting therefrom, an annular groove in said hub, a bearing collar fitting over said hub and having an opening at the top into said groove, a unitary gear and distributor disc having the gear part of metal and the distributor part of insulation with a bearing sleeve moulded into the insulation, said sleeve adapted to rotatably fit over said collar, a wick positioned in said groove so as to project through the opening in said collar, and means for passing lubricant to said groove and wick for the purpose. described.

4. In a. magneto generator, a front bearing plate having a hub projecting therefrom, an annular groove in said hub, a bearing collar fitting over said hub and having an opening at the top into said groove, a combined distributor disc and operating gear having a bearing sleeve rotatably fitting over said collar, means for holding said combined disc and gear in operative position on the collar, means for passing lubricant to said groove and means located in the groove to slowly feed the lubricant to the surface between the collar and sleeve.

In a magneto generator, a front bearing plate having an annular projecting hub with an annular groove in the outer sur= face thereof, a bearing collar fitting over and fastened to the hub and having an opening in the top part into said groove, a combined distributor disc and operating gear having a hub extending within the first mentioned hub and carrying a contact brush, and a bearing sleeve concentric with said distributor hub but adapted to fit over said collar, means for holding said combined disc and gear in operative position on the collar, a passage for lubricant to said groove and means located in the groove for slowly feeding the lubricant to the surface between said collar and sleeve.

6. For a magneto generator, a distributor comprising a metal rim having gear teeth out therein and a securing flange, a bearing sleeve, a distributor sector and brush insert and insulating material moulded around said securing flange, sleeve, sector and insert to form a combined unitary gear and distributor disc.

7. For a magneto generator, a combined unitary gear and distributor disc, comprising a centrally located insert carrying a contact brush, a distributing sector electrically connected to said insert, a bearing sleeve concentric With said insert and a metal gear ring in a plane at right angles to said insert, said insert, sector, sleeve and ear ring being held in operative position y insulating material moulded thereaboutas described.

In testimony whereof, I affix my signature.

ALBION D. T. LIBBY. 

